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Finding the Fourth Proportional to 118,531.22, 177,866.94 and 43,703.90

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Solution

The fourth proportional to 118,531.22, 177,866.94 and 43,703.90 is: 65,581.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,531.22 : 177,866.94 = 43,703.90 : x
  2. Step 2: Convert to fraction form
    118,531.22/177,866.94 = 43,703.90/x
  3. Step 3: Cross multiply
    118,531.22x = 177,866.94 × 43,703.90
  4. Step 4: Simplify right side
    118,531.22x = 7,773,478,959.07
  5. Step 5: Solve for x
    x = 7,773,478,959.07/118,531.22
  6. Step 6: Final answer
    x = 65,581.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.